Valve for supplying compressed air



Feb. 14, 1928.

A. H. NELLER VALVE FOR SUPPLYING COMPRESSED AIR Filed May 9, 1927 1// H1 1 Hi Patented Feb. 14, 1928.

ALBERT H. NELLER, OF FAIR-FIELD, IOWA,

A SSIGNOR TO NEW BOSS MANUFACTURING CO. 'INC., OF FAIRFIELD, IOWA, A CORPORATION OF IOWA.

VALVE FOR SUPPLYIN G COMPRESSED AIR.

Application filed May 9,

lily-invention relatesto valves adapted to be attached to a cylinder. of an automobile or combustion engine-whereby the air from the cylinder may be utilized for operating an air controlled tool, and it consists of providing a double passageway for the air from the intake =valve thereby rendering the action of the intake valve more positive and certain and means for attaching the air conveyinghose and of other features set forth in the claims and,specifications.-

In the drawings forming.zi..part 'of this specification, Fig. 1' is arside viewof my device, showing. it placed on a'vertically posed section of a cylinder of acombustion engine, only a portion of the cylinder being shown.- Fig. 2 is a verticahtransverse section of Fig. l, the part of the cylinder being omitted. Fig. 3 is a-.horizontal transverse section on line 33 of Fig. 1, lookingiin the direction of the arrows.

Referringto' the drawings, A represents the lower part of my valve casingadapted to be attached to the cylinder B of an engine by means Totla threaded connection 0 inserted in the cylinder at the opening D where the spark plug is ordinarily inserted. The cylinder B has the ordinary piston E only the upper portion of which is shown. The connection C is hollowed throughout its length as shown by dotted lines.

The casing A has a bifurcated air passageway F and F connecting the interior of the cylinder, thru the connection C, with a valve chamber G, on the bottom side of which is formed an intake valve seat H, for the ball valve I. By the use of the bifurcated passageway, an equal suction is exerted on the opposite sides of the intake valve member, thereby securing more positive action of the valve. The valve chamber G has a greater diameter than the ball valve I. and to keep the valve I in align ment with the valve seat, I provide ribs J (Fig. 3 and dotted lines in Fig. 2) on the sides of the chamber G, which maintains the ball valve I in perfect alignment with the valve seat H.

Secured to the casing A, as will be hereafter explained, is an outlet valve carrying member K, which consists of a plate for attachment to the casing A and a ring shaped projection L which forms a guideway for the outlet valve member M, and keeps it in alignment with its valve seat. A valve seat 1927. Serial No. 189,909.

N is formed on the member K, for the ball .valve and a pinP is inserted :through the sideaof the ring-shaped projection L,' for holding: the ball valve M in the ring shaped projection L,-when the device is inverted. pndnotin use; V i The force of gravity is sufiicient for holdmg the ball-valves I'and M in seated position when in operative use. It is desirable that the ball valves be kept seated when the device .is'not inoperative use so that for eign substances cannot enter-the air chambers and also to ,prevent the, ball valves from rattling while, the device. isbeing handled. I -preferagbly. use helicahsprings 'for accom- .pl ishing.;-this,'one,end; of. the spring. J contacting withthe-ball valve I, and. the other end with the member K, and'one end of the spring 0 contacting with the ball valve M and'the other with the pin P. v

The casing Q forming. an air chamber is securely i fastened. to the member K -andA by means of four bolts B. It is necessary thatthis connection be air tight and to accomplish thisIrusepaper gaskets S, but any of the well known forms of gaskets may be used. The casing Q has an opening T formed on the upper side of the casing, and has a key-carrying arm U projecting vertically from the side and top of the casing A screw threaded key V engages the threaded opening V in the projection U. which will be hereafter explained.

The compressed air from my device is conveyed to the air operated tool by means of a hose l V. Oftcntimes this hose is many 'lTv(-.l.

in length, and it is only by twisting the hose that a screw threaded connection may luused. l/Vith my device I employ a fitting which is affixed to the hose by the member 1". The fitting X. has an air passageway therein and an opening X to fit over the opening T in the casing Q. The fitting X is held in engagement with the casing Q by means of pressure exerted from the key V. With this arrangement the hose can be readily and manually attached and detached from my device.

My device has been successfully used with the air controlled tools, and the operation of the device is as follows, when connected with a cylinder of an engine, on the downward stroke of the piston E, the inlet valve I is unseated thereby permitting air to enter the cylinder through the passageways F and F.

On theiq nrard stroke ofthej iis'tori'tfhe-aii-is forced throi'igh' the passageways and into the air chamber G. An excessive amount of air therein \Ylll (aUSQtlXQ OHtlGt valve-M to be unseated and permit the aiiu to enter the chamber formed in the casing Q, from which it can only escape through the hose "V. .The device is simple and effective in operation.

What I claim is: 1. In a compressed air valve, the e0n1bination ofa casing haX'in'ga screw threaded-end for connection i'vith' a cylinder o-fan'e'ngine and an op'ehinj fat the "opposite mam. inlet ball valve and seat therefor in the lower eentral-part'of the easing 'andan oiitle'tball valve and seat therefor in th'u'pper' central part; of tlie' casing,fa bifii'iate'd lair'pa' ssage- Way from the inleta alteto the fe'j linder' ar ranged to exert shot-ion ono-pposite s'ides of the inlet ball valve, and'n'i'eans for jeonne'cting a hose'tothe ripper openiiwof the casin' 2. In a compressed air'i zllve, tlieeombihanation' of easing'lfavingascreit threaded end for connec tio'nfit it'lfiaeylihdei'flof an engine and an openinget the opposite end, an inlet ball valve and seja t therefor in'the lower e'entra'l part Off the casing and an outl t ball valve an'd seat therefor'in the'iipper Central part of the casing 21: guideway mahher for aligning-'t'houtlet ball alvewith the seatt her'eofl a' bifurcated air passageiray from the inlet valve to the'eylind'er arranged to exert siicti'on on'oppositesides of the inlet ball valve, and means for conneet ing a hose to the upper opening of the casing.

the casing.

3; In a:colnpfessed"aifivalve,the .combination of'a' easing having a screw threaded end for connection with a cylinder of an engine and ;an-op ening at -.-the oppositeend, an inlet ball valve and; seattherefor in the lower central part of the casing and an outlet ball vzr li'ei-zifitlis'eat therefor in the upper central part of the casing, means for holdin}; the liall*V'iilr'e'is' in seated position when the valve is not in use and a bifurcated air passageway from "the ihlet valve to; the cyl- Connecting lids'e to" the iip'pei opening of 4. In'a co inpressdlai'r valve; the combination ofa -eiis'ifi g having a "se 1ew' threaded 'end'for eoiinee'tion with a cylinder of an engine and 'airopeni'ng at '-t-l'1 opposite end, an ihlet h'all valve and seat therefor in the loaver-ei'i'tra'l'ljii'rt of the casing and an outlet" ball "Valve-and seat therefo'r'in the upper cent r-a1 of the easing, ;n'1eans' for holding the ball-Valves in seatedpo'sit-ionwhen th valve i not injise and, a" b'ifiilcated air lpessagewa fram the'inletvalve to the cylii'ide'r arranged to exert suetionon opposite sides 'of'the'i inlet ball valve; an-armon the '"eis'ilfg';extei liin 'joyefi theopening in the -end' tliereof, a c p attaehed 'to a l1o-se to fit over the opening-iirtlie casing, and a threaded'key iiiserted' -tllroii gh the arm-on the casing to contact with the cap and hold it in PiOSltlOT-l. I-

ALBERT H. NELLER. 

